Apparatus for molding silos and the like.



T. B. ATKINS.

APPARATUS FOR MOLDING S'ILOS AND THE LIKE.

APPLICATION FILED AUG.25, 19H- Patented July 16, 1918.

3 SHEETS-SHEET 1 WITNESSES ATTORNEY m: mmms PETERS cu Puomurum wAsmNumn.n. c.

I. B. ATKINS.

APPARATUS FOR- MOLDING SILOS AND THE LIKE.

APPucAnon FILED Auakzs. 1911.

1,272,886. Patented July 16, 1918. A

3 SHEETSSHEET 2- WITNESSES 32 0%. M

ATTORNEY m: mmms Perms CD-.FND1D-LITNG.. yvAsNmamn. n. c.

T. B. ATKINS.

APPARATUS FOR MOLDING SiLOS AND THE LIKE.

APPLICATION FILED AUG-25. 1917- Patented July 16, 1918.

3 SHEETS-SHEET 3 WITNESSES ATTORNEY THOMAS E. ATKINS, 01! GANUTILLO,TEXAS. I g

APPARATUS FOR MOLDING SILO-S AND THE LIKE.

Specification of letters Patent.

Patented July 16, 1918.

Application filed August 25, 1917. Serial No. 188,259.

To all whom it may concern:

Be it known that I, THOMAS E. ATKINS, a citizen of the United States,residing at Canutillo, in the county of El Paso and State of Texas, haveinvented new and useful Improvements in Apparatus for Molding Silos andthe like, of which the following is a specification.

This inventlon relates to an apparatus adapted to be used formolding'silos. and

similar structures from concrete cement material and it consists in thenovel features hereinafter described and claimed.

An object of the, invention is to provide an apparatus of the characterstated which is of simple structural arrangement and which may be easilyand quickly manipulated in order to properly adjust the parts forpositioning them as the structure progresses.

With the above object in view the apparatus comprises a mast composed ofsections which are connected with each other by said pulleys.

means of suitable coupling members. The

mast sections are provided with suitable ladder rungs. A head is mountedupon the uppermost mast section at the top end thereof and guy ropes orcables are employed for securing the head with relation to the groundwhereby the mast is held in a vertical position. Pulleys are journaledupon the said head and cables are trained over the A sleeve is slidablymounted upon the mast and means are provided for holding the same at afixed position with re.- lation to the mast. A suspension bar is looselyfitted upon the sleeve and one end 7 of the said; cables is attached tothe said bar at the opposite sides of the said mast. The other ends ofthe cables extend down .along'the mast and are connected with hoistingblocks located at the lower orbase portion of the mast. Braces ofspecial. design are mounted upon the intermediate portion ofthe mast andare adapted to engage the inner surface of the completed portion ofthejstructure whereby the mast is held in position duringthe course oferection of the building. -A- sleeve is slidably mounted upon the. mastand setscrew devices are provided for holding the said sleeve atadjusted positions upon theomast. Rings; are mounted. upon the sleeveand are provided with sockets which. re e e t e n r e d f at the outersurface of the wall of the structure and the other set at the innersurface thereof. Rings surround the mast at points below the firstmentioned rings and are 'connected with the ring which is mounted uponthe sleeve by means of hangers. The last mentioned rings support theinner ends of arms which in turn carry at their outer portion framesadapted to cooperate with the sections of the form which is used at theinner surface of the wall of the structure. The last mentioned arms aremade in sections which are pivotally connected together and-the saidsections may be swung with re lation to each other whereby the framesare forced'in close contact with the sections of the wall form. Meansare provided for connecting the adjacent ends of the sections of thesaid frames together whereby the wall form is securely held in position.The sections of the wall form which are used at the outer surface of thewall are connected together by means of a panel which is movable inorder to expand or contract the sections of the said wall form withrelation to each other in order that it may be readily removed from acompleted portion of the wall. Still another ring is mounted upon themast and is provided with arms adapted to project under the lower edgeof the inner wall form whereby the said form is held in position whilethe frames are being molding apparatus showing parts in side elevation;

Fig. 2 is a top plan view of part of the mold.

Fig. 3 is a horizontal sectional view of the inner'portion of the mold.

Fig. 4 is a fragmentary side elevation of the outer part of the mold.

Fig. 5 is a similar view showing a ladder structure pplied. to t e ut prtion of the fmold.

V .th eimoldl 6 i eeimi r v w sh win ee g tly ditl'eret arrangement;from that illustrated Fig. 10 is a transverse sectional yiew of the ringand adjacent parts.

Fig. 11. a,transverse sectional view of the .mast of thelmold showingparts mount- 12' is a similar view a showing arms eonnlectediwith themast.

F1g. 13 isa plan view of another used on the mast.

1 1 a; transverse sectional view of theringhow i l i -z1 a Fig 15,isalongitudi lview hanger27.

e 'Ih iepi erh h ife ml i e. l re he like strirctnre. comprises alm astlrwhich is composed of a -.series. of pipecseo tions suitably ,connectedtogether at E their adjacent e d a y fl h ,e US lw WP 1 19 1 09 1 The11131 311. is provided lwith suitablddcitach- ,ahle r-ungsspaced atappropriate intervals apart and which may used by operatiiies' forascendingor descendingthe mast. Ahead member 3 is ,positionedat the ,topend ,oi, the mast,aridflearries jphrnaled pulleys i.

Gables ,5 are .Corinected vat .O11Q Q1'1 Cl .Wl th ,the head member 3and may; beconnected at theirother, ends (with s takes or other objeet pted i sten h r y t mast smay beheld in yertieal position while the apparatusisf inuseJ toot member 6 ,i nmehh a h ba ef th meet a a riessuitable pulleys 7. ,A sleeve 8 isslidahly mounted upon the upperportion of the mast 1 and is provided a with rings 9. having. set screwwhic m y b turne in o ngag mentwith the mas'twhereby the sleeve I Sis anadj u sted position thereon. suspension Jp arll is, loosely, mountedpon, the sleevefi and mayeng'agea collar {12 fixed to the said sleeve.The external diameter of the collar12 is greater than the internal .d llleter of the sleeve 8. One end of the -$%el?;1" l er ht e w h eh perien of the bar 11 and the intermediateportions 7 of the said cahles aretrained over the puli. llh e i 's aid extend down halong si a-en hl h et. th i lea ends With hoisting blocks 1+1 whichiin turn are provided wit lrchains 15 trained around the pulleys 7 and which may be used ina15ml n e fo drawing the 7 a le when i e-i fecl. when th 1s eevelin anhrnardf hree ieh th m A lihg y-he reeit eh l u n th in- I teiimediateportionpi" the and rest upon sh ewe iee ri in W ieh' eeh e' t themed?ac'ent sections of the mast together.

17 arepivotally connected at their ends with the; said ring and maybearat their outer ends against the inner surface of the wall of thestructure whereby the intermediate portion ofthe mast is braced in acentral position with relation to the structure. Cables 18 are connectedat their outer ends with the outer portions of the arms 17 and may belashed at their inner ends to the intermediate portion of ,the mast. henit is desired to disengage the outer end of the arms 17 from the innersurface oi the structure the cables 18 are pulled in anihward,directionits edge with socketswhich receive the inner ends of aI nsQS. The outerendsof .the'hook members 21 rs leonnectedwiththe outer end portions .ofthe said' arms 23. A shifting clamp 24 is provided at ,th

lowerend portion of thesleeve 8. heends of the cables 131may hedisengaged from the bar 11 ,and connected with [the shi:t'ting clanipQd,and when. so connected thecables may e use h reinh for deee tihed oshitting the sleeve 8. I V

zlile i e 2, a 26 ,rlepe a hem t ,outer portions of the arms 23 and the,hangers 25., support the outer Wallformcsections whil th hange 26 .El Pli' I' 3 E 1 form sectio ns He ef e depen ,im t r 'ihg- 2 an the saidlgrangers 27 are connected. at points .het ee wthei Ql d .,Wi hig2 ahdhas hereinafter described.

their vlower ends, with a ring 29. Both of p n efl e d 2 urroun h mes-e1and are movable thereon. ,Quter wall form e et ene 30 efeheet m t a ee he e w t the lower ends of the l'rangersg25 and the adihe -edg r rtieh ofthe se ieh re I hr eh-e he Str la lefi.eh le.i en lgar secured to thesections 30in the vie t th re gzlerr s edge jthe'rl f n ts r nsv rs lythr hghthee r p 331 serve to hold the sections "3.0 at adjnsted Po i nwith r lh ien e ea h get e Iwh h the term is use; I If edesiifd tnb'rrlr Washers 8 b app ie t therbelt 2 h shownin 1 C erta'inJo-f the seetieare provide t i en er side wit t-ed' links 33 a v liichy have-endplertions cit line r nk 3P4- ia eri le E nen 1 is 7 hi i ed r n t eetien'sc Laei th 2 sai sh fts, ar pr vided r' with ihh the shaft wherebythe links 3.3 are moved longitudinally and the adjacent sections 30: areexpanded with relation to'each other.

This'aifords means for readily removing the sections 80 from a portionof the completed wall of the structure- The inner wall form sections 38are con- Y nected with the lower ends of the hangers 26 and thesesections include vertical strips of lagging 39. Radially disposed arms40 are carried by the rings 28 and 29 hereinb'e fore described andlevers 41 are pivot ed at the outer ends of the arms 40. The said leverscarry frames 42 which are adapted to bear against the inner surfaces ofthe sec tions 37 and spread the same when the form is in position toreceive the material against the same. Jacking devices 43 are providedat the adjacent edges of the frames 42 and may be used for spreading thesaid frames with relation to each other and after the said frames havebeen spread strips 44 may be inserted in the spacing between the edgesthereof thereby providing a complete form for the inner surface of thewall of the structure. Collars 45 and 46 are slidably mounted upon themast 1 and cables may be connected with the said collars for moving thesame along the mast. Arms 47 are pivotally connected at their inner endswith the lower collar 46 and when the said collar is moved in an upwarddirection along the mast, the outer ends of the arms 47 are projectedunder the lower edges of the inner wall form sections 37 and support thesaid sections at adjusted positions. Rods 48 are pivotally connectedwith the collar 45 at their inner ends and at their outer ends the saidrods are pivotally connected with the outer end portions of the arms 47.After a POI'lJlOIl'Of the wall of the structure has been completed thecollar 46 maybe lowered along the mast 1 and then the collar 45 may beraised along the mast and hence the outer end of the arm 47 will bewithdrawn from under the form section 37 and the said sections maybemoved along the wall of, the

- structure after they have been loosened or contracted with relation tothe same.

In use, the inner and outer wall form sections are positioned at properdistances with relation to each other and the parts are secured atadjust-ed positions; The material is then filled in between the saidWall form section and is permitted to set. When the material hardens,the wall form sections are elevated along the mast and again securedinposition and another portion ofthe wallv structure is filled in. This.operation is repeated until the structure has arrived at the desiredheight. The. apparatus is then removed from the. structure and a roof isplaced upon the same.

From the foregoing description taken in conjunction with theaccompanying drawing, it will be seen that an apparatus for molding asilo or similar structure of simple and durable arrangement is providedand that the same may be economically used for erecting the :silo andthe apparatus may be used: repeatedly, for this purpose.

, Havingdescribed the invention what is claimed is 1. An apparatus ofthe character described comprising a mast, a sleeve slldably mountedthereon, means' for moving the sleeve on the "mast, means for securingthe sleeve at an adjusted position upon the mast, radially disposed armsconnected with the sleeve, hook members connecting the outer portions ofthe arms with the sleeve, hangers dependingfrom the outer portions ofthe said arms, wall form sections'connected with the said hangers, theouter wall form section having overlapping edge portions, means forexpanding the outer wall form sections with relation to each other,hangers depending from the said sleeve, rings carried by the lastmentioned hangers, arms carried by the said rings, levers mounted uponthe arms, frames carried by the levers and adapted to bear against theinner wall form sections, jacking devices for spreading the said frameswith relation to each other, filling strips adapted to be interposedbetween the frames and means for sustaining the inner wall form sectionsat adjusted positions along the structure.

2. An apparatus of the character described comprising a mast, a sleeveslidably mounted thereon, means'for moving the sleeve along the mast,means for securing the sleeve at an adjusted position upon the mast,arms carried by the sleeve, hangers depending from the arms, wall formsections connected with said hangers, other hangers depending from thesleeve, rings connected with the last mentioned hangers, arms connectedwith the said rings, levers pivoted to the arms, frames carried by thelevers and adapted to bear against the inner wall form sections, otherrings movably mounted upon the mast, arms pivotally connected with oneof the last mentioned rings and having end pore tions adapted to projectunder the lower edges of the inner wall form and rods piv-' otallyconnected with the outer portions of the last mentioned arms andpivotally connected with the other of the last mentioned I is braced inposition with relation to the Same, a sleeve movably mounted upon themast, means-formovin g' vthe sleeveymeans fer securing the-sleeve :at anadjusted-posi- "131011 upon the i mast,-. :arms married. by the Sl eve,hangers: dependingfrom wthewlast 5 mentioned arms,Wallform-:seetionssupperted by said hangers,=-o1aherhzmgers dependlngfrom the sleeve, rings carriedgbythe lastmentioned hangers and: adapted5 to? move along the mast, arms attaQhed-YtO -t'hG last @10 mentionedrings, levers fulcrumed to the 1 st mentioned ran-ms, 'fmmesbafriedubyzuid 1eposed: in' theispace' betweemthe adj acent' inner Wall formframes. v

n In testimony whereof l affix my signature.

. THOMASzB. ATKINS.

